Maxima (329128) Extra4 15W-50 Synthetic 4T Motorcycle Engine Oil - 1 Gallon Jug Extra4 is a 100 percent Triple Ester blend synthetic motor oil featuring advanced additive technology By using today's most advanced additive systems and high-performance synthetic ester based stocks, Maxima has engineered what is believed to be the finest 4-cycle motorcycle specific oil available on the market today The very latest shear stable polymer systems have been used to assure viscosity stability and virtually eliminate transmission shear-down of the oil Anti-wear and Anti-scuff additives reduce friction and engine temperatures, makes for easier starts, extends drain intervals and produces superior engine cleanliness Formulated for Wet clutches the all weather formula is viscosity stable, reducing engine wear, improving fuel economy, and makes for smoother transmission shifting; Exceeds JASO-MA M/C 4T Specs and API SG/CC Specs